Hydra matic 6l80 problems

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Exceptional torque rating. Developed with upgraded internal components, Chevrolet Performance’s SuperMatic 6L80-E 6-speed automatic transmission offers an exceptional torque rating of 650 lb.-ft. – a 45 percent increase over regular production versions of the 6-speed automatic. Find Dealer.- Problem #1 - The Torque Converter. - Problem #2 - The Intermediate Shaft. - Problem #3 - The Valve Body. - Problem #4 - The OEM Oil Pan. - Problem #5 - The High …6L80/6L90 These transmissions are very stout and will perform well under most conditions, although the cases are quite large and do not fit in most passenger cars with a stock transmission tunnel. The 6L90 can handle up to 555 hp in passenger cars. In a truck, the weight reduces handling to 452, torque limits range from 530 to 550 ft-lbs.The 6L80 Hydra-Matic transmission is a 6 speed automatic transmission manufactured by General Motors. It was created to help GM meet ever more demanding CAFE regulations on their vehicles. By utilizing more gearing, the 6L80 keeps the car in it's power band longer, improving the MPG of the vehicle between 4-7% (over the previous generationSep 10, 2021 ... Comments28 ; GM 6L80 removal Step By Step converter failure. Express Auto & Transmission David Lee · 102K views ; Sonnax 6L80/90 Torque Converter ....The new Hydra-matic 6L80 (6 Speed) is a fully automatic, six speed, rear wheel drive, electronic controlled transmission that features clutch to clutch shifting. It was first introduced in the 2006 Corvette with the 6.0L engine, Cadillac STSV/XLRV with the 4.4L engine, and is scheduled for Pick-ups in 2007. 6l80e Transmission Manual.6L80 / 6L90; 6R140; 6R80; 6T75E / 6T70; 6T40 / 6T45; 65RFE; 68RFE; Allison 1000; Aisin AW55-50SN; CD4E; ... About the 10L80 & Common Problems. GM 10L80 Hydra-Matic History . ... The GM 10L80 Hydra-Matic transmission is one such hybrid component that General Motors jointly developed with, wait for it, the Ford Motor Company! ...

Hello all, new to tuning and have been doing lots and lots of reading. I have a 2014 chevy silverado with the 4.3 and the 6l80 trans. I have disabled the dod and have left everything else stock. After driving for about a week im feeling like the trans needs a little tweaking. Been reading alot about torque management and what it does and messing …GM indicates the normal operating range for a 6L80 transmission (without thermostat) is 180-200 degrees. I wont be able to help with your tune, but I've been monitoring transmission temperatures for over a year. Here are some basic observations. Higher speed = higher temperatures.Feb 12, 2022 · In 6L80, 6L90 units, an inherent torque converter problem might be the root cause of a lot of the transmission failures. Sonnax has the answer. The 6L80E is a 6-speed automatic transmission that features a 4.02:1 first gear allowing pavement-tearing acceleration. The aftermarket versions available at JEGS allow for a 45% increase in torque. This means it can handle up to 650 ft.-lb. of torque. With numbers like these, it's no wonder that the 6L80 has become a popular choice for those ...A well-publicized issue with the LT1 Corvette engines as well as other GM V-8s of the era—including the L83 5.3-liter, L86 6.2-liter truck engine, and LT4 6.2-liter—is an engine misfire or ticking noise caused by a failed lifter or lifters. ... For 2014, the automatic transmission offered was the six-speed Hydra-Matic 6L80 with paddle shift ...A GM transmission lawsuit has hit a snag after a judge dismissed certain implied warranty claims made in the filing. Five separate class-action lawsuits filed against General Motors were consolidated in a Michigan court, with vehicle owners alleging the Hydra-Matic 8L90 and 8L45 transmissions are defective.What Are The GM 6L80 Transmission Problems? The GM 6L80 automatic transmission, while widely used in various car and truck models, has encountered some known issues over the years. Here’s a detailed breakdown of these common problems: 1. Torque Converter Failure. This is considered a major issue, often leading to cascading problems.This is a post on 7 common Google Chrome problems. Learn how to fix them in this in-depth post. Receive Stories from @chrishholland

Transmission Fluid Guide – NO. TB 150122.1. Automatic Transmission Fluid (ATF): is requirement of a transmission, such as valve operation, brake band friction and the torque converter as well as gear lubrication for synchronized self-shifting or automatic transmissions. It is typically colored red or green to distinguish it from motor oil and ...Information about GM's 8-speed 8L90 M5U Hydra-Matic transmission, including details, specifications, vehicle applications, and more. ... to fit the same space as the previous 6L80/6L90 family of ...This is a post on 7 common Google Chrome problems. Learn how to fix them in this in-depth post. Receive Stories from @chrishholland

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Speed up your Search . Find used 6L80 Transmission for sale on eBay, Craigslist, Letgo, OfferUp, Amazon and others. Compare 30 million ads · Find 6L80 Transmission faster !| https://www.used.forsaleA Look at the GM 6L80; Part 1 A Look at the GM 6L80 ; Part 1 by Steve Garrett Cadillac STS-V Hydra-Matic 2006 6L80 (MYC) Six Speed RWD Automatic Transmission Introduction The first of ten new 6-speed automatics, the 6L80 was introduced for the 2006 model year (Figure 1). ... That’s enough for this issue; in the next issue of GEARS, we’ll ...The 6L80 transmission fluid capacity depends on which torque converter is installed. Most full-size pickup trucks and SUVs have a 300 mm 6L80 torque converter, while light duty applications often have the 258 mm torque converter. 6L80 fluid capacity with the 258 mm torque converter: 9.7L/10.25 qt. 6L80 fluid capacity with the 300 mm torque ...Overview. The Hydra-Matic 6L80 is six-speed automatic transmission for rear-drive cars, designed with modular flexibility and compatibility with advanced …

Mar 4, 2022 · If one darkens your door, it will typically have an issue related to the pump and/or the torque converter. The 6L series units all share the same design and layout whether it is a 6L45,6L50, 6L80, or 6L90. A variable displacement vane-style oil pump is integral to the bellhousing. Anytime the converter decides to “take a permeant vacation ... Information about GM's 8-speed 8L90 M5U Hydra-Matic transmission, including details, specifications, vehicle applications, and more. ... to fit the same space as the previous 6L80/6L90 family of ...6L90E 6L90 Transmission. $ 3,595.00 Original price was: $3,595.00.$ 2,695.00 Current price is: $2,695.00. The 6L90 transmission for sale our lowest price yet. This Hydra-Matic six speed automatic is a direct replacement for the Chevy Camaro, Express van, Savannah, Sierra, Suburban, Yukon and Tahoe. The 6L90E fits in vehicles who’s years range ...INSE: Get the latest Hydra Industries Acquisition stock price and detailed information including INSE news, historical charts and realtime prices. Indices Commodities Currencies St...Cadillac GMC Holden Hummer. The new Hydra-matic 6L80 (6 Speed) is a fully automatic, six speed, rear wheel drive, electronic controlled transmission that features clutch to clutch shifting. It was first introduced in the 2006 Corvette with the 6.0L engine, Cadillac STSV/XLRV with the 4.4L engine, and is scheduled for Pick-ups in 2007.Poor pressure control due to clutch select valve springs. Problem – Due to OE clutch select valve spring tension, the valve apply fluid pressure inside of the 6L80/6L90 valve body will be too high, causing a number of transmission problems that include: Premature failure of the 1-2-3-4 clutch. Premature failure of the 3-5-Reverse clutch.The 6L80 / 6L90 TEHCM is located inside of the transmission on the 6L80 / 6L90 valve body. Objectively, it is a fairly simple repair: simply remove the transmission pan, remove the valve body, unbolt the TEHCM from the valve body and install the new one. But it does take a bit of experience to not damage anything on the valve body or inside the ...The biggest change to the 2009 Chevrolet Avalanche is the addition of a new Hyrda Matic 6L80 six-speed automatic transmission, which replaces the long-running 4L60 four-speed unit found in earlier ...GM Hydra-Matic 8L90 and 8L45 transmissions allegedly make driving dangerous. May 24, 2023 — A General Motors transmission lawsuit is on hold after the judge sent the allegations to arbitration ...Sep 17, 2023 · by Transmission Cooler Guide. The Hydra-Matic 6L80 (production code MYC) is a six-speed automatic transmission produced by General Motors for use in rear- and rear-biased all-wheel-drive vehicles with a longitudinal powertrain orientation. Developed in-house by General Motors, the Hydra-Matic 6L80 is part of the 6LXX family of fuel-saving ...

2006 Corvette: Service Bulletin: New Product Announcement -- Hydra-Matic 6L80 Automatic Transmission. 2000 - 2006 Corvette: Service Bulletin: Diagnostic Information on Diagnostic Trouble Code (DTC) P0894 and P1870 ... Equipped with 6L80 or 6L90 Automatic Transmission (RPO MYC, MYD) Condition/Concern.

This is the DOWNLOAD link for The new Hydra-matic 6L80 (6 Speed) TechTran. The Hydra 6L80 is a fully automatic, six speed, rear wheel drive, electronic controlled transmission that features clutch to clutch shifting. It was first introduced in the 2006 Corvette with the 6.0L engine, Cadillac STSV/XLRV with the 4.4L engine, and is …Also, be sure to check out our diagnosis help page. As an owner, you should be aware of the early Hydra-Matic drive characteristics. Reference this link, and go to the "Design" section. These transmissions are unique when compared to subsequent Hydra-Matics. LINK TO HYDRA-MATIC DRIVE CHARACTERISTICS - Scroll To "Design"April 20, 2019 — GM 8L90 and 8L45 transmission problems have caused a proposed class action lawsuit that alleges the 8-speed transmissions are defective in the following vehicles in California ... The General Motors 6L80-E & 6L90-E transmissions are among the most diverse and capable transmissions of their time; being used in everything from exciting muscle cars to family SUV’s. In this Drivetrain 101, we’ll analyze all of its most prolific problems, solutions and upgrades. Become a 6L80-E and 6L90-E expert now! These transmissions are part of the Turbo Hydramatic or Hydra-Matic series and also known as: 6L90, 6L90E, 6L90-E, MYD ... Transgo SK-6L80 Shift Kit 6L45 6L50 6L80E 6L90E GM Automatic Transmission Update HD Improver. $145.88. Sonnax 6L80-LB1 Line Pressure Booster Kit Boost Valve & Spring 6L45, 6L50, 6L80E 6L90 Transmission. The new Hydra-matic 6L80 (6 Speed) is a fully automatic, six speed, rear wheel drive, electronically controlled transmission that features clutch to clutch shifting. It consists primarily of a four element torque converter, two planetary gear sets, five clutch packs, one sprag and a hydraulic pressurization and control system. The GM 8L90 Hydra-Matic 8-speed transmission can perform wide open throttle upshifts 8/100 of a second faster than Porsche’s DCT gearbox. The 8L90 transmission can also be manually shifted via steering wheel paddles. And it operates far smoother than a double clutch transmission, thanks to the turbine dampers in the 8L90 torque converter.Feb 12, 2022 · In 6L80, 6L90 units, an inherent torque converter problem might be the root cause of a lot of the transmission failures. Sonnax has the answer.

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Problems with no overdrive can happen because faults associated with these two solenoids. Corroded, loose, oily connectivity. The computer supplies voltage through one pin. (Pin E) The easiest place is to check at the passthrough connector. The computer controls the solenoid through ground. It will switch off by denying ground at the …Problems with Professional Carpet Installation - There are certain problems associated with professional carpet installation. Visit HowStuffWorks to learn more. Advertisement As we...Turbo-Hydramatic or Turbo Hydra-Matic is the registered tradename for a family of automatic transmissions developed and produced by General Motors.These transmissions mate a three-element turbine torque converter to a Simpson planetary geartrain, providing three forward speeds plus reverse.. The Turbo-Hydramatic or Turbo Hydra-Matic …The 6L80 / 6L90 TEHCM is located inside of the transmission on the 6L80 / 6L90 valve body. Objectively, it is a fairly simple repair: simply remove the transmission pan, remove the valve body, unbolt the TEHCM from the valve body and install the new one. But it does take a bit of experience to not damage anything on the valve body or inside the ...Jan 1, 2024 · Exceptional torque rating. Developed with upgraded internal components, Chevrolet Performance’s SuperMatic 6L80-E 6-speed automatic transmission offers an exceptional torque rating of 650 lb.-ft. – a 45 percent increase over regular production versions of the 6-speed automatic. Find Dealer. Subject: New Product Announcement -- Hydra-Matic 6L80 Automatic Transmission. Model(s): 2006 Cadillac STS-V, XLR-V 2006 Chevrolet Corvette with 6L80 Automatic Transmission (RPO MYC) Attached below is the PDF document for this service bulletin. General Motors bulletins are intended for use by professional technicians, not a …Chevrolet testing has shown the ZL1 with the available 10-speed has faster shift times than the Porsche PDK dual-clutch transmission. In fact, the 1-2 upshift is 36-percent quicker than the PDK, while the 2-3 and 3-4 upshifts are 27-percent and 26-percent quicker, respectively. “You touch the paddle and the gear changes with immediacy ...A Hydra-Matic Drive transmission, produced between 1939 and 1956, on display at the Ypsilanti Automotive Heritage Museum. Hydramatic (also known as Hydra-Matic) is an automatic transmission developed by both General Motors' Cadillac and Oldsmobile divisions. Introduced in 1939 for the 1940 model year vehicles, the Hydramatic was the …GM 8L 45 · 8L 90. The Ford–GM 10-speed automatic transmission is part of a joint venture between Ford Motor Company and General Motors to design and engineer two transmissions: a longitudinal 10-speed transmission and a transverse 9-speed trans-axle. Each company manufactures its own unique version of the transmissions in its own factories.The Hydra-Matic 6L80 six-speed automatic transmission was the first of four variants in the rear-wheel drive transmission family designed with modular flexibility and compatibility with advanced ... ….

Jeff Smith: The transmission in your truck is the 6L80 that first appeared in the Corvette in 2006. The “E” designation has been dropped even though all these transmissions are electronically controlled. This is a much different transmission from the earlier generation 4L60/4L80/4L90E four-speed overdrives. This newer transmission is what ...Other common 6L80E transmission problems include: Cracks in the 1-2-3-4 piston . Early versions of the 6l80 had issues with developing cracks in the 1-2-3-4 piston, and sometimes within the piston itself. Transmission builders who specialize in the 6l80 will often install an updated version of the 1-2-3-4 piston and housing to prevent future ...2006-2015 GM Passenger Cars and Trucks equipped with 6L80 or 6L90 Automatic Transmission (RPO MYC or MYD) Condition. After installing the service pump cover P/N 24248573, a transmission may have low line pressure. If the low line pressure is not identified and corrected, clutches may be damaged during operation. The new Hydra-matic 6L80 (6 Speed) is a fully automatic, six speed, rear wheel drive, electronic controlled transmission that features clutch to clutch shifting. It was first introduced in the 2006 Corvette with the 6.0L engine, Cadillac STSV/XLRV with the 4.4L engine, and is scheduled for Pick-ups in 2007, as shown in Figure 1. FLUID CHECK PROCEDURE. 6L80 / 6L90 transmissions do not typically use a dipstick. Proper fluid level is achieved when fluid begins to drip from the Level Control Plug opening. Verify vehicle is on level ground when performing fluid level check procedure. Verify drive wheels are blocked and parking brake is applied.Our optional Premium Service Plan provides allowances for such items as towing, car rental, fluids and premium labor should a problem arise. Click here for details and limitations. If you have any questions or need help, feel free to contact our team. 800-827-7455.In simple terms, the 6L50, 6L80, 6L90, 6T70, 6T75, 6T80 all use the same design TEHCM. Let me explain before you get upset and rip this page out of the magazine. The TEHCMs for all applications use different part numbers, which means they may not be interchanged with another part number, but all of the TEHCMs are manufactured by …There are many types of eye problems and vision disturbances, such as: There are many types of eye problems and vision disturbances, such as: Vision loss and blindness are the most...John Parmenter, Precision International Tech Advisor goes over resolving problems on the 6L80 transmission. For more information, make sure to check out our ...Advertisement In theory, rail guns are the perfect solution for short- and long-range firepower. In reality, they present several serious problems: Advertisement A coil gun (or Gau... Hydra matic 6l80 problems, 4L70E Transmission Help ... hydra-matic 6l80 6-speed automatic!, The Hydra-Matic 6L50 (production code MYB) is a six-speed automatic transmission produced by General Motors for use in rear- and rear-biased all-wheel-drive vehicles with a longitudinal powertrain ..., The Hydra-Matic 6L50 (production code MYB) is a six-speed automatic transmission produced by General Motors for use in rear- and rear-biased all-wheel-drive vehicles with a longitudinal powertrain ..., 722.9 4-matic transfer case; bw4409 ml class transfer case '97-'03; dcs itc 1-speed '03+ magna-steyr itc 2-speed; mp1128 mp1628 '11+ ford; ... fits 6l80: '10+ gm 6-speed transmission. related products. sale. 6l45 6l50 6l80 6l90 6t70 6t75 transmission tehcm pressure switch repair kit psr-5 transgo fits '07-'21 gm., Cadillac GMC Holden Hummer. The new Hydra-matic 6L80 (6 Speed) is a fully automatic, six speed, rear wheel drive, electronic controlled transmission that features clutch to clutch shifting. It was first introduced in the 2006 Corvette with the 6.0L engine, Cadillac STSV/XLRV with the 4.4L engine, and is scheduled for Pick-ups in 2007. , 6L50 Transmission - Durability and Reliability. doing some research on my new truck - interesting that the interwebs has almost zero info on the 6L50 transmission. We have dearth, not a plethora! So, humor aside....I checked the specs at gm powertrain - the trans is rated for 315HP (gas), which seems very close to the HP the V6 makes stock., Our optional Premium Service Plan provides allowances for such items as towing, car rental, fluids and premium labor should a problem arise. Click here for details and limitations. If you have any questions or need help, feel free to contact our team. 800-827-7455., The 6L80 transmission has been used in models ranging from 2008 to 2019 chevy tahoes, silverados and many more models so it is obviously been a good transmission which tells me the problem was ..., 6-speed 6L80 automatic: $3,899; 8-speed 8L90 automatic: $5,894; 10-speed Hydra-Matic 10L80 MF6 automatic: $5,700; Common Chevy Silverado 1500 Transmission Problems. Chevy Silverado’s and their transmissions are known to have quite a few problems but it’s far from the only issue with these trucks., Cadillac GMC Holden Hummer. The new Hydra-matic 6L80 (6 Speed) is a fully automatic, six speed, rear wheel drive, electronic controlled transmission that features clutch to clutch shifting. It was first introduced in the 2006 Corvette with the 6.0L engine, Cadillac STSV/XLRV with the 4.4L engine, and is scheduled for Pick-ups in 2007., 2006 - 2008 Corvette: GM TechLink: 6L80 or 6L90 Automatic Transmission Shift Conditions 2006 Corvette: Customer Satisfaction Program: Engine Flywheel/Clutch Interference 2004 - 2007 Corvette: Service Bulletin: Engine and Automatic Transmission/Transaxle Identification, The most common problem with GM 10-speed transmissions is the shift selector. It occurs when your vehicle suddenly slips into lower or higher gear without any action or change in speed. The gear drops as the vehicle accelerate, indicating an issue with the shift selector. Acceleration is usually increased by shifting up a gear., Problem #5 - The High Pressure Oil Pump. As with the valve body, the 6L80-E high pressure oil pump contains multiple valves that are responsible for the proper oil flow about the transmission, and as a result, suffers from similar issues. These valves can stick, wear at the bore, springs can break and more. , The first automatic was known as the four-speed Hydra-Matic (commonly referred to as the Hydro) introduced in 1940. This transmission used a fluid coupling as opposed to a torque converter and enjoyed limited use in early drag racing. ... Despite the 700-R4 / 4L60’s somewhat undeserved reputation for problems, there is a wealth of …, Now with more than 60 technical service bulletins (TSBs) filed related to GM’s Hydra-Matic 8-speed transmission, a class action lawsuit has been filed against the automaker. Harper, et al., v. General Motors, LLC. was filed in the U.S. District Court for the Eastern District of Michigan, according to CarComplaints.com., SK 6L80. Avoid Counterfeits! This TransGo 6L80 SHIFT KIT® Valve Body Repair Kit fits 2006 and later General Motors and BMW vehicles equipped with the popular 6L45, 6L50, 6L80 and 6L90 automatic transmissions. These transmissions often come in with a delaminating Pressure Regulator (PR) valve which wears out the PR valve bore in the pump ..., John Parmenter, Precision International Tech Advisor goes over resolving problems on the 6L80 transmission. For more information, make sure to check out our ..., The 6L80 is rated for diesels at 300 bhp and 520 lb-ft. My 6.5 "Power Project" rebuild should be within those limits. I have a 10 page article on the 6L80 if anyone is interested. Here are some interesting specs: 2006 Allison 1000. 1st 3.10, 2nd 1.81, 3rd 1.41, 4th 1.00, 5th 0.71, 6th 0.61. 2007 Hydra-Matic 6L80., FLUID CHECK PROCEDURE. 6L80 / 6L90 transmissions do not typically use a dipstick. Proper fluid level is achieved when fluid begins to drip from the Level Control Plug opening. Verify vehicle is on level ground when performing fluid level check procedure. Verify drive wheels are blocked and parking brake is applied., His troubleshooting skills to help solve some of my issues are incredible. He's made my car shift like stock under normal conditions while still producing ~750hp at the flywheel and running low 10's in a full weight sedan. His understanding and willingness to explain how the 6L80/90 works has been amazing., GM is offering a version of its new GM-developed Hydra-Matic 8L90 paddle-shift eight-speed automatic transmission in the 2015 Corvette Stingray (earlier post) and Z06.The 8L90, the replacement for the venerable 6L80 six-speed in GM’s lineup, is offered as well as standard on 2015 Chevrolet Silverado, GMC Sierra and GMC Yukon …, Solenoid DTC’s – GMC Sierra 1500 6L80E. Problem – A number of diagnostic trouble codes, including P0776, P0796, P2714 and P2723, can be caused by a pressure leak at the end of the clutch regulating valve. Solution – The bore plug will have to be replaced with updated versions, or modified to accept an O-ring kit., May 1, 2022 · The typical transmission life expectancy for a 6L80 is around 150,000 miles. This means that on average, the 6L80 should last around 150,000 miles before needing to be replaced. Factors that can affect the life expectancy of transmission include regular maintenance and proper care. , 6L50 shudder fix. I have now successfully fixed 6 vehicles with the 6L50 transmission. 2 gasser Colorados, my diesel Canyon, a BMW and a Camaro. If anyone one is interested I will do a tutorial on exactly what you need to do. So far this has fixed shudder and hard shifting issues in all 6 vehicles. 2016 Dirtymax Canyon., The Hydra-Matic 6L90 (production code MYD) is a six-speed automatic transmission produced by General Motors for use in rear- and rear-biased all-wheel-drive vehicles with a longitudinal powertrain ... , GM Hydra-Matic 6L80 6L90 Tools; GM 6L80 6L90 1-2-3-4 / 3-5-R Drum Leak Checking Tool $ 54.99. Add to cart Details. Turbo 200 350 400 700R4 4L60 4L60E 3L80 4L80E Manual Shaft Seal Install Tool $ 44.99. Add to cart Details. Turbo 6L80 6L90 Filter Seal Install Tool $ 44.99. Add to cart Details ..., Hydra Industries Acquisition presents their latest quarterly figures on August 12.Analysts predict Hydra Industries Acquisition will release losse... On August 12, Hydra Industries..., The new Hydra-matic 6L80 (6 Speed) is a fully automatic, six speed, rear wheel drive, electronic controlled transmission that features clutch to clutch shifting. It was first introduced in the 2006 Corvette with the 6.0L engine, Cadillac STSV/XLRV with the 4.4L engine, and is scheduled for Pick-ups in 2007, as shown in Figure 1., I am having a problem with the Hydra-Matic 6L50 six-speed automatic transmission in my 2017 Chevrolet Colorado with the Baby Duramax engine. ... i have a 2018 canyon 2.8 diesel. i ed the forum and find torque converter problems. i changed the fluid at 5k,20k and 50k with the 50k service including a filter. noticed a shudder yesterday …, Poor pressure control due to clutch select valve springs. Problem – Due to OE clutch select valve spring tension, the valve apply fluid pressure inside of the 6L80/6L90 valve body will be too high, causing a number of transmission problems that include: Premature failure of the 1-2-3-4 clutch. Premature failure of the 3-5-Reverse clutch., The 6 speed wasn't available until 2009. Ohh he has what they call the VortecMax which was before the 6.2 entered into the scene. My bad I saw 6.0 and assumed it was a 2500. As a 1500 yeah he is about a year too early for a 6l80. And being a 6.0, he should have the beefier 2500 tranny as well., Jul 7, 2023 · 6-speed 6L80 automatic: $3,899; 8-speed 8L90 automatic: $5,894; 10-speed Hydra-Matic 10L80 MF6 automatic: $5,700; Common Chevy Silverado 1500 Transmission Problems. Chevy Silverado’s and their transmissions are known to have quite a few problems but it’s far from the only issue with these trucks. , Heredity. It is quite possible that thyroid problems develop more frequently in humans whose ancestors had any throat diseases or thyroid disease itself. In fact, one cannot claim ...